Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/34—Alcohols
  • A61K8/345—Alcohols containing more than one hydroxy group
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
  • A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/20—Halogens; Compounds thereof
  • A61K8/21—Fluorides; Derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
  • A61K8/442—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof substituted by amido group(s)
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
  • A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
  • A61K2800/30—Characterized by the absence of a particular group of ingredients
  • A61K2800/31—Anhydrous
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/59—Mixtures
  • A61K2800/596—Mixtures of surface active compounds

Definitions

• the present invention relates to a composition in particular to a non-aqueous dentifrice composition comprising a novel surfactant system.
• the invention relates to a non-aqueous dentifrice composition comprising a combination of surfactants i.e. a betaine and a taurate surfactant; or a betaine and an alkyl sulphate surfactant; or a betaine, a taurate and an alkyl sulphate surfactant.
• a dentifrice composition demonstrates pleasant organolpetic properties and is of use in oral care.
• dentifrice additives which are incompatible with aqueous systems of typical dentifrice formulations.
• One way of overcoming this incompatibility problem is to formulate such additives in a non-aqueous (anhydrous) formulation.
• non-aqueous (anhydrous) formulation in addition to circumventing the water incompatibility problem, such formulations must also be successful from a consumer acceptance standpoint and demonstrate, for example, acceptable taste, consistency and adequate foaming on brushing of teeth.
• U.S. Pat. No. 3,574,824 (Warner-Lambert) describes an anhydrous toothpaste base comprising inter alia an oil, a combination of polyethylene glycols and a non-toxic, non-ionic emulsifier which is a mixture of glycerides.
• U.S. Pat. No. 3,574,824 discloses that an experimental paste was made using oily liquids, such as vegetable oil or extra light mineral oil, and a suitable surfactant. However when the paste was brought into contact with water during brushing there was insufficient foaming in the oral cavity. This was thought to be due to the fact that the foaming agent (sodium lauryl sulphate) was “hindered” in the anhydrous mass and was unable to concentrate at the air-water interface during brushing to form air bubbles or foam.
• oily liquids such as vegetable oil or extra light mineral oil
• U.S. Pat. No. 4,647,451 (Colgate-Palmolive Company) describes anhydrous dentifrice compositions having desirable rheological, sensory and hygienic characteristics containing a polysaccharide gum and glycerine humectant. According to U.S. Pat. No. 4,647,451, such compositions comprise organic surface active agents which may be anionic, non-ionic, ampholytic, or cationic in nature. Compositions exemplified therein contain sodium lauryl sulphate as the sole surfactant.
• U.S. Pat. No. 5,670,137 (L'Oreal) describes a dentifrice composition containing an anhydrous medium comprising glycerine, at least one hydroxyethylcellulose, at least one pyrogenetic silica. According to U.S. Pat. No. 5,670,137 such a composition also contains one or more foaming surfactants which may be anionic, amphoteric, zwitterionic, cationic or non-ionic. Compositions exemplified therein contain sodium lauryl sulphate as the sole surfactant.
• WO96/03108 SmithKline Beecham plc
• WO 2002/038119 SmithKline Beecham plc
• Anionic, cationic, non-ionic and amphoteric surfactants are disclosed for use as suitable surfactants.
• a particularly preferred anionic surfactant is identified as sodium methyl cocyl taurate, marketed under the name “Adinol CT 95”, this being the sole surfactant exemplified for use in the compositions therein.
• compositions therein may optionally comprise agents conventionally used in dentifrice formulations including, for example, a foaming agent such as sodium lauryl sulphate.
• a foaming agent such as sodium lauryl sulphate.
• Compositions exemplified therein contain sodium lauryl sulphate as the sole surfactant.
• WO2010/115037 (Colgate-Palmolive Company) describes non-aqueous compositions comprising carrageenan or a carboxymethylcellulose gum, a humectant and a bioacceptable and bioactive glass.
• compositions therein may comprise additives conventionally used in dentifrice compositions including for example a surfactant such as sodium lauryl sulphate.
• a surfactant such as sodium lauryl sulphate.
• Compositions exemplified therein contain sodium lauryl sulphate as the sole surfactant.
• non-aqueous compositions described in the prior art address some of the problems encountered with formulating dentifrice additives that are incompatible with aqueous-based systems, there nevertheless remains a need for alternatives.
• such alternative compositions should further demonstrate one or more properties that are key drivers of consumer acceptance including, for example, having consumer-acceptable organolpetic properties.
• the organolepic properties of such a composition will be at least as good as or preferably improved over those seen in comparable, marketed non-aqueous dentifrice products.
• the invention provides a non-aqueous dentifrice composition
• a carrier wherein the carrier consists of a surfactant system consisting of a first surfactant which is a betaine in combination with a second surfactant which is a taurate or an alkyl sulphate or mixtures thereof.
• a non-aqueous composition comprising a surfactant system consisting of a combination of surfactants, specifically a betaine and a taurate, or a betaine and an C 10-20 alkyl sulphate, provides significantly superior organoleptic properties compared to that observed for a composition comprising a single, sole surfactant (sodium lauryl sulphate).
• Such superior organoleptic properties include one or more of improved mouthfeel, improved foam dispersion and consistency, and improved foam characteristics such as intensity and density, all of which are desired attributes in a dentifrice composition. In some embodiments foam characteristics are improved without modifying significantly on taste properties.
• non-aqueous means anhydrous or substantially free of water.
• the individual components of the non-aqueous composition may contain limited amounts of water as long as the overall composition remains substantially free of water.
• the term “dentifrice” includes any semi-solid preparation in the form of a paste, cream or gel for use in cleaning all or a portion of the oral cavity of an individual.
• oral cavity means an individual's teeth and gums including all periodontal regions including teeth down to the gingival margins and/or the periodontal pockets.
• a composition according to the invention comprises a surfactant system.
• the surfactant system consists of a first surfactant and a second surfactant.
• the surfactant system consists of a first surfactant and a second surfactant wherein the second surfactant consists of a mixture of surfactants.
• a first surfactant for use in the surfactant system of a composition according to the invention belongs to the class of compounds known as betaines.
• betaine compounds contain an anionic functional group such as a carboxylate functional group and a cationic functional group such as quaternary nitrogen functional group separated by a methylene moiety. They include n-alkyl betaines such as cetyl betaine and behenyl betaine, and n-alkylamido betaines such as cocoamidopropyl betaine.
• the betaine is cocoamidopropyl betaine, commercially available under the trade name Tego Betain.
• the betaine is present in an amount ranging from about 0.05 to about 4% by weight of the non-aqueous composition, for example from about 0.2 to about 2.0% by weight of the non-aqueous composition.
• a second surfactant for use in the surfactant system of a composition according to the invention is selected from a taurate or a C 10-20 alkyl sulphate surfactant.
• Taurate surfactants useful in the present invention are salts of fatty acid amides of N-methyl taurine. They conform generally to the structural formula:
• RC(O)— represents a fatty acid radical and M represents sodium, potassium, ammonium or triethanolamine.
• Fatty acids having carbon chain lengths of from 10 to 20, including those derived from coconut, palm and tall oil are used.
• the fatty acid is derived from coconut.
• sodium salts are used.
• the taurate is sodium methyl cocyl taurate. This taurate surfactant is sold under the trademark by Adinol CT by Croda.
• the taurate surfactant may be present in an amount from about 0.1 to about 10% of the non-aqueous composition. In one embodiment the taurate surfactant is present in an amount from about 0.1 to about 5% by weight of the non aqueous composition. In one embodiment the taurate surfactant is present in an amount from about 0.5 to about 2.0% by weight of the non-aqueous composition.
• Alkyl sulphate surfactants of use in the invention have the following structural formula:
• R 1 represents a fatty alcohol moiety and M represents sodium, potassium, ammonium or triethanolamine.
• Fatty alcohols having carbon chain lengths of from about 10 to about 20, including those derived from coconut, palm oil and tall oil.
• the fatty alcohol is lauryl alcohol.
• a sodium salt is used.
• the alkyl sulphate is sodium lauryl sulphate.
• the alkyl sulphate surfactant may be present in an amount from about 0.1 to about 10% of the non-aqueous composition. In one embodiment the alkyl sulphate surfactant may be present in an amount from about 0.1 to about 5% by weight of the non aqueous composition. In one embodiment the alkyl sulphate surfactant is present in an amount from about 0.5 to about 2.0% by weight of the non-aqueous composition.
• the surfactant system consists of a first surfactant which is a betaine, and a second surfactant which consists of a mixture of a taurate and a C 10-20 alkyl sulphate surfactant as hereinabove described.
• the surfactant system consists of a first surfactant which is a betaine and second surfactant which consists of a mixture of sodium methyl cocyl taurate and sodium lauryl sulphate.
• composition according to the invention comprises a dentifrice additive that is unstable or incompatible with an aqueous environment.
• an additive is a bioactive glass of the type disclosed in WO96/10985, WO 97/27158 and WO 99/13852.
• a bioactive glass In an aqueous environment such a bioactive glass releases ions causing a significant increase in pH which can adversely affect the stability (especially upon long-term storage) of any excipients contained within the dentifrice.
• Formulating a bioactive silica-based glass in the non-aqueous dentifrice of the present invention prevents the release of ions within the dentifrice thereby controlling pH and increasing long-term storage stability of the dentifrice.
• the bioactive glass for use in the invention has a composition consisting of about 45% by weight silicon dioxide, about 24.5% by weight sodium oxide, about 6% by weight phosphorus oxide, and about 24.5% by weight calcium oxide.
• One such bioactive glass is available commercially under the trade name, NovaMin®, also known as 45S5 Bioglass®.
• the bioactive glass is present in an amount ranging from about 1 to about 20% by weight of the non-aqueous composition. In one embodiment, the bioactive glass is present in an amount from about 1 to about 15% by weight of the non-aqueous composition. In an alternative embodiment, the bioactive glass in the non-aqueous composition is present in an amount from about 1 to about 10% by weight of the non-aqueous composition. In a further alternative embodiment the bioactive glass is present in an amount from about 2 to about 8% by weight of the non-aqueous composition.
• a dentifrice composition comprising the following components in percent by weight:
• Bioactive glass about 1 to about 10 Betaine about 0.05 to about 4 Taurate about 0.5 to about 2 Carbomer about 0.3 to about 1 Glycerin about 50 to about 70 Polyethylene glycol about 15 to about 25
• a dentifrice composition comprising the following components in percent by weight:
• Bioactive glass about 1 to about 10 Betaine about 0.05 to about 4 SLS about 0.5 to about 2 Carbomer about 0.3 to about 1 Glycerin about 50 to about 70 Polyethylene glycol about 15 to about 25
• the carrier comprising the surfactant system is a non-aqueous carrier and is substantially non-reactive with bioactive glass particulates (or other dentifrice additives that are unstable or incompatible with an aqueous environment) and is suitable for use in a dentifrice composition.
• Suitable non-aqueous carrier formulations are described, for example, in U.S. Pat. No. 5,882,630, issued to Gates et al. (1999).
• a non-aqueous carrier useful in the present invention typically comprises a thickening agent and one or more formulation solvent(s).
• a dentally acceptable abrasive may be included in the non-aqueous carrier.
• a thickening agent is present in the formulation to give the product a rheology closer to that of a conventional dentifrice.
• the thickening agent comprises a carboxyvinyl polymer such as a carbomer.
• a carbomer comprises synthetic high molecular-weight cross-linked polymers of acrylic acid.
• the polymer chains formed of repeating units of acrylic acid may be cross-linked with, for example: allyl sucrose to provide a carbomer available commercially in one form as CarbopolTM 934; ethers of pentaerythritol to provide a carbomer available commercially in one form as CarbopolTM 974; or with divinyl glycol, available commercially in one form as NoveonTM AA-1.
• CarbopolTM polymers are manufactured by B.F. Goodrich Company.
• the carboxyvinyl polymer comprises CarbopolTM 974.
• the carboxyvinyl polymer may be present in the range of from about 0.1 to about 7.5% by weight of the non-aqueous composition. In one embodiment the carboxyvinyl polymer is present in an amount from about 0.3 to about 1.0% by weight of the composition.
• composition according to the invention may further comprise an inorganic thickening agent such as a thickening silica.
• a thickening silica for example, a colloidal hydrated silica, available commercially for example as Sident 22S or Syloid 244FP.
• the thickening silica is present in the range of from about 0 to about 15%, suitably from about 5.0 to about 15.0% by weight of the non-aqueous composition.
• Suitable solvents for use in the present invention include glycerin, sorbitol, propylene glycol, polyethylene glycol or mixtures thereof.
• the solvent comprises glycerin. It is well known that commercially available glycerin may contain between 0.1-2.0% by weight of water which is in association with the glycerin. Typically this amount is ⁇ 0.5% for example between 0.1-0.5% by weight of the glycerin. This small amount of water is bound to the glycerin and is therefore not available to the other ingredients. The skilled person would still consider a composition containing glycerin as being non-aqueous. The solvent should in any case be as anhydrous as possible.
• the solvent comprises polyethylene glycol.
• the polyethylene glycol will be selected from PEG 300, PEG 400 and mixtures thereof.
• the polyethylene glycol comprises PEG 400.
• the solvent comprises a mixture of glycerin and polyethylene glycol.
• the formulation solvent is used to make the formulation up to 100%, and suitably the total amount of solvent may be present in the range of from about 20 to about 95% by weight of the non-aqueous composition.
• the solvent comprises glycerin present from about 35 to about 75%.
• the glycerin is present from about 50 to about 70% by weight of the non-aqueous composition.
• the solvent comprises polyethylene glycol present from about 0.1% to about 40% by weight of the non aqueous composition.
• polyethylene glycol is present from about 15 to about 25% by weight of the non-aqueous composition.
• the ratio of carboxyvinyl polymer to polyethylene glycol is in the range of about 1:15 to about 1:30.
• a dentally acceptable abrasive may optionally be added to the non-aqueous composition.
• the presence or absence of a dentally acceptable abrasive as well as the amount of such abrasive may be used to selectively control the abrasivity of the dentifrice composition made with the non-aqueous compositions of the invention.
• the bioactive glass may provide an acceptable amount of abrasivity for the non-aqueous composition depending upon the ultimate use.
• a desired amount of dentally acceptable abrasive may be added to increase the abrasivity of the overall non-aqueous composition.
• Suitable abrasives for use in the non-aqueous composition include, for example, amorphous, gelled, precipitated or fumed silica, zinc orthophosphate, sodium bicarbonate (baking soda), plastic particles, alumina, hydrated alumina, calcium carbonate, calcium pyrophosphate, insoluble metaphosphates or mixtures thereof.
• the silica abrasive may be a natural amorphous silica, for instance diatomaceous earth; or a synthetic amorphous silica such as a precipitated silica.
• silica abrasives include those marketed under the following trade names Zeodent, Sident, Sorbosil or Tixosil by Huber, Degussa, Ineos and Rhodia respectively.
• a silica abrasive is present in an amount up to 25% by weight of the total composition, for example from 2 to 20% by weight for example from 5 to 15% by weight of the total composition.
• an amount of abrasive suitable for use in the non-aqueous composition of the present invention will be empirically determined to provide an acceptable level of cleaning and polishing, in accordance with the techniques well known in the art.
• the abrasive is present in an amount from about 0 to about 60%, typically from about 5 to about 30%, by weight of the non-aqueous composition.
• the non-aqueous compositions of the invention may additionally optionally contain one or more oral care active agents conventionally used in dentifrice formulations.
• oral care active agents may include, by way of example, a fluoride source, a desensitizing agent, an anti-calculus agent, an anti-erosion agent, an antimicrobial agent, an anti-plaque agent, a whitening agent, an oral malodour agent or a mixture of at least two thereof.
• Suitable sources of fluoride ions for use in the compositions of the present invention include an alkali metal fluoride such as sodium fluoride, an alkali metal monofluorophosphate such a sodium monofluorophosphate, stannous fluoride, or an amine fluoride in an amount to provide from 25 to 3500 pm of fluoride ions, preferably from 100 to 1500 ppm.
• a further desensitizing agent including a tubule blocking agent or a nerve desensitizing agent and mixtures thereof, for example as described in WO 02/15809 (Block) may be included in a composition according to the invention.
• Such further optional desensitizing agent(s) include a strontium salt such as strontium chloride, strontium acetate or strontium nitrate or a potassium salt such as potassium citrate, potassium chloride, potassium bicarbonate, potassium gluconate and especially potassium nitrate.
• Polyphosphates are known to help retard calculus formation and are examples of anticalculus agents suitable for use in the invention.
• a polyphosphate is generally understood to consist of two or more phosphate groups arranged primarily in a linear configuration, although some cyclic derivatives may be present.
• Polyphosphates of use in the invention include pyrophosphates, polyphosphates having three or more polyphosphate groups such as sodium tripolyphosphate, and polyphosphates having four or more polyphosphate groups such as tetrapolyphosphate and hexametaphosphate among others.
• compositions of the invention may further comprise an antierosion agent, for example a polymeric mineral surface active agent as described in WO 04/054529 (Procter & Gamble).
• an antierosion agent for example a polymeric mineral surface active agent as described in WO 04/054529 (Procter & Gamble).
• compositions of the present invention will contain additional formulating agents such as flavouring agents, sweetening agents, opacifying or colouring agents and preservatives, selected from those conventionally used in an oral hygiene composition art for such purposes.
• additional formulating agents such as flavouring agents, sweetening agents, opacifying or colouring agents and preservatives, selected from those conventionally used in an oral hygiene composition art for such purposes.
• the optional agents may be used in a minor amount or proportion of the overall formulation.
• such components are usually present in from about 0.001 to about 5% by weight of the non-aqueous composition.
• the dentifrice composition typically has a viscosity suitable for application to the oral cavity.
• the viscosity will vary depending on the type of dentifrice composition made and the ultimate use thereof.
• One of skill in the art can readily prepare compositions with suitable viscosities for use in the oral cavity from the teachings provided herein.
• compositions according to the present invention may be prepared by admixing the ingredients in the appropriate relative amounts in any order that is convenient.
• Non-Aqueous Composition Betaine with Taurate
• Non-Aqueous Composition Betaine with Alkyl Sulphate
• the dentifrice compositions evaluated included control formulations 1-3 (containing SLS as the sole surfactant component) and dentifrice compositions according to the invention, D1-D2.
• Control 1 Control 2
• Control 3 D1 D2 Glycerol 62.77 62.57 62.37 62.41 61.47
• Sulphate Cocoamidopropyl — — — 0.36 1.20 Betaine Sodium Methyl — — — 1.20 Cocoyl Taurate Polyethylene Glycol 20.00 20.00 20.00 20.00 20.00 20.00 400 Silicon Dioxide 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 NovaMin 5.00 5.00 5.00 5.00 Titanium Dioxide 1.00 1.00 1.00 1.00 1.00 Carbomer 0.75 0.75 0.75 0.75 0.75 Homopolymer Sodium Saccharin 0.35 0.35 0.35 0.35 0.35 0.35 Flavour 1.03 1.03 1.03 1.03 1.03 1.03
• the sensory attributes evaluated were: texture attribute (foam intensity, foam consistency, foam dispersion, foam density); clean teeth sensation and overall liking of the mouthfeel.
• texture attribute foam intensity, foam consistency, foam dispersion, foam density
• clean teeth sensation and overall liking of the mouthfeel.
• Seven panellists from the project team were recruited. Samples were blinded, labelled with a three-digit number and presented randomly to the panellists. No statistical analysis was applied due to the low number of panellists.
• Foam systems (concentration % w/w) D1 D2 Control 1 Control 2 Control 3 1.1% SLS- 1.2% AD- 1.1% SLS 1.3.% SLS 1.5% SLS 0.36% TB 1.2% TB Mouthfeel 5.5 5.2 4.8 5.6 5.0 liking like like slightly like slightly like like slightly slightly moderately Dispersion of 3.8 3.7 3.5 3.8 3.7 the foam very easy very easy moderately very easy very easy easy Consistency of 2.5 2.3 2.6 2.8 2.6 the foam too thin too thin Just about Just about Just about Just about right right right Foam intensity 2.9 2.8 3.4 3.6 4.6 moderately moderately very foaming very foaming extremely foaming foaming foaming Foam density 2.4 2.7 2.7 3.0 2.7 slightly moderately moderately moderately moderately moderately dense dense dense dense dense Clean teeth 4.1 4.0 4.0 4.0 4.4 sensation very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean very clean
• Control 4 composition The formulation details of the Control 4 composition were as follows:
• Samples were blinded, labelled with a three-digit number and presented randomly to fifteen professional panellists.
• the sensory attributes evaluated were texture attributes (foam intensity, foam density, foam dispersion, smoothness) and taste attributes (sweetness intensity, bitterness intensity; flavour intensity) and clean teeth sensation.
• texture attributes for example, foam intensity, foam density, foam dispersion, smoothness
• taste attributes sweetness intensity, bitterness intensity; flavour intensity
• Tego Betain/Adinol and Tego Betain/SLS detergent systems improved the foam characteristics of the compositions relative to the SLS system alone, without modifying significantly taste characteristics.
• the Tego Betain/Adinol composition provided the best performance in terms of foam.
• the objectives of the study were to identify and quantify differences in textural elements between formulations comprising SLS, Tego Betain or Adinol as the sole surfactant, and formulations comprising a combination of surfactants i.e. Tego Betain/Adinol and Tego Betain/SLS.
• composition of the toothpastes tested was as follows.
• Samples were blinded, labelled with a three-digit number and presented randomly to fifteen professional panellists.

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• 2011
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  • 2012-08-07 WO PCT/EP2012/065378 patent/WO2013020960A2/en active Application Filing
  • 2012-08-07 RU RU2014101248A patent/RU2630575C2/ru active
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